21537816

素因数分解:

$2^3\times 3^1\times {\mathrm{107}}^1\times {\mathrm{8387}}^1$

素因数の和:8503

約数の個数: 32

約数和(自身を含む): 54354240

約数和(自身を除く): 32816424

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 107, 214, 321, 428, 642, 856, 1284, 2568, 8387, 16774, 25161, 33548, 50322, 67096, 100644, 201288, 897409, 1794818, 2692227, 3589636, 5384454, 7179272, 10768908, 21537816]

約数ペア:

[(1, 21537816), (2, 10768908), (3, 7179272), (4, 5384454), (6, 3589636), (8, 2692227), (12, 1794818), (24, 897409), (107, 201288), (214, 100644), (321, 67096), (428, 50322), (642, 33548), (856, 25161), (1284, 16774), (2568, 8387)]